Ruby Fused Alumina Powder 99.5% Al2O3 from China
Ultra-fine ruby-colored fused alumina powder with 99.5% aluminum oxide, refined for optical and lapping applications. Classified in HTS 2818.10.20.10 as high-purity, colored artificial corundum that is pulverized. Provides superior hardness for metallurgical polishing and thin-film coatings.
Duty Rate — China → United States
8.8%
Rate breakdown
9903.88.157.5%Except as provided in headings 9903.88.39, 9903.88.42, 9903.88.44, 9903.88.47, 9903.88.49, 9903.88.51, 9903.88.53, 9903.88.55, 9903.88.57, 9903.88.65, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(r) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(s)
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Include XRF spectrometry results proving >97.5% Al2O3 and ruby pigmentation
• Specify micron size (e.g
• D50=1-5μm) to validate 'refined/pulverized' form